CN1053300A - Tinted contact lenses with a natural look - Google Patents

Abstract

The present invention discloses a kind of Tinted contact lenses with utmost point natural look.Eyeglass of the present invention comprises a transparent lesser ring of Merkel and bipartite to the opaque iris of small part district.The first area that generally is positioned at periphery, iris district has first tone, and the second area that generally is positioned at inside, iris district has second tone.A serrated boundary separates above-mentioned two parts.The invention also discloses the 3rd iris region and second serrated boundary.The part iris region can be transparent in some embodiment.

Description

The present invention relates to a colored contact lens, particularly a contact lens having an opaque colored portion to change the color of the wearer's iris and give it a natural appearance.

It has long been recognized that contact lenses with opaque tints should not have simply hard colored irises. Such contact lenses display a very unnatural appearance. Wichterle in US Pat. No. 3,679,504 discloses an opaque contact lens having an iris of more than one color, either painted or photographed. The glasses were not commercially successful. Other methods of making opaque lenses with a natural appearance are disclosed in US Pat. ) and UK Patent UK2202540A (IGEL).

Knapp discloses a contact lens with an opaque tinted point in an example of US Pat. No. 4,582,402. Knapp's lenses were a great commercial success. With a simple pattern of monochromatic dots, the lens achieves a natural appearance and is simple and inexpensive to manufacture. In column 3, lines 23-29 of the above-mentioned patent, Knapp states: "Since recent studies have shown that many people's irises include more than one color, for a more natural effect, different patterns of different colors should be used for repeated printing. more than one step. The printed pattern does not need to be absolutely uniform in order to highlight the fine structure of the iris". Commercially successful monochromatic Knapp lenses have an irregular pattern of color points distributed to accentuate the structure of the iris. However, neither the commercially available Knapp lenses nor the Knapp patent disclose or indicate how to arrange the color point pattern of more than one color to achieve a more natural appearance.

The present invention is based on the unexpected discovery that very simple polychromatic opaque patterns, some of which are according to the Knapp disclosure, yield irises with a very natural appearance. On the basis of the monochromatic Knapp lens, the improvement to the appearance is amazing, and it has obtained great commercial success. Like the monochromatic lens, the lens of the present invention can produce a radical change in the appearance color of the wearer's iris, for example from Dark brown to light blue or green. Although the preferred embodiment of the invention is a dichroic lens, the use of more than two colors is contemplated.

The first aspect of the present invention constitutes a colored contact lens comprising a transparent pupil region, an iris region surrounding said pupil region and a colored opaque intermittent pattern over the entire iris region, between intervals of the pattern A considerable part of the space is transparent, the pattern occupies at least 25% of the entire iris area, and the constituent elements of the pattern are imperceptible to ordinary people, wherein the first part of the pattern elements has the first color, and the second part of the pattern elements has A second shade different from the first shade in which the first portion is generally located on the periphery of the iris area and the second portion is generally located in the interior of the iris area, with a jagged border separating the first and second portions, wherein the jagged border is in the iris area The minimum distance of the outer edge is about 5% to 45% of the radial width of the iris area, and the maximum distance of the border at the outer edge of the iris area is about 45% to 95% of the radial width of the iris area, thus obtaining a A lens that changes the apparent color of the wearer's iris while providing a very natural appearance.

The second solution of the present invention constitutes a colored contact lens comprising a transparent pupil region and an opaque iris region surrounding the pupil region, the opaque elements of the iris region being imperceptible to ordinary people, wherein the first part of the opaque iris region has First shade, second portion The opaque iris area has a second shade different from the first shade, the first portion is generally located on the periphery of the iris area, and the second portion is generally located in the interior of the iris area, a jagged border separates the first and The second part, in which the minimum distance of the jagged boundary from the outer edge of the iris area is about 5% to 45% of the radial width of the iris area, and the maximum distance of the border from the outer edge of the iris area is about 45% of the radial width of the iris area %-90%, resulting in a lens that changes the apparent color of the wearer's iris while having a very natural appearance.

A third aspect of the present invention constitutes a colored contact lens comprising a transparent pupil region and an opaque iris region surrounding the pupil region, wherein a first portion of the iris region has a first hue and a second portion of the iris region has a A second shade of a different hue, the first portion generally located on the periphery of the iris area, the second portion generally located within the iris area, and a jagged border separating the first and second parts, wherein the jagged border is at a minimum distance from the outer edge of the iris area It is about 5% to 45% of the radial width of the iris area, and the maximum distance of the border on the outer edge of the iris area is about 45% to 95% of the radial width of the iris area, thus obtaining a wearer's iris The appearance of the color, and has a very natural-looking lens.

A fourth aspect of the present invention constitutes a colored contact lens comprising a transparent pupil region and an iris region surrounding the pupil region, the iris region comprising a first outer portion and a second outer portion separated by a jagged border, wherein The minimum distance of the jagged boundary at the outer edge of the iris area is about 5% to 45% of the radial width of the iris area, and the maximum distance of the border at the outer edge of the iris area is about 45% to 95% of the radial width of the iris area. One of the parts is transparent while the other has an opaque color.

A fifth aspect of the present invention constitutes a colored contact lens comprising a transparent pupil region and an iris region surrounding the pupil region, the iris region comprising a first outer portion surrounding a second intermediate portion and a second intermediate portion Surrounding third interior with first and second parts separated by a first jagged border and second and third parts separated by a second jagged border where both first and third parts have an opaque color and the second part is transparent, or the second part has an opaque color and the first and third parts are transparent, or the first, second and third parts all have an opaque color and the second part has the same Parts in different shades.

In the first version of the invention, the pattern elements are preferably opaque dots and take the following color combinations:

First (outer) part Second (inner) part

Green Hazel

blue hazel

brown hazel

blue grey

Optimum color dot patterns are shown in Figures 1-6.

The term "clear" as used in this specification refers to the portion of the lens that is untinted or tinted by a clear pigment.

The term "second shade different from the first shade" means that the two shades are completely different colors, such as blue and ecru; or that the two shades are the same basic color with different intensities, such as light blue and dark blue.

The term "average person" refers to a person with 20 to 20 vision standing at a distance of 5 feet from the wearer of the lens of the present invention.

Figure 1 shows a dot pattern very close to the monochrome dot pattern of currently commercially available Knapp lenses, which can be overprinted to make the lenses of the present invention as shown below.

Figure 2 shows the optimum color dot pattern for internal color dots according to the present invention.

Figure 3 shows the optimum color dot pattern for the outer color dots according to the invention.

Figure 4 shows another color dot pattern of the outer color dots according to the invention.

Fig. 5 shows another color dot pattern of internal color dots according to the present invention.

Figure 6 shows a color dot pattern for overprinting a lens in a third color in accordance with the present invention.

Figures 7 and 8 show examples of variations of iris patterns corresponding to the second and third schemes of the present invention, respectively.

Figures 9 and 10 show examples of variations of iris patterns corresponding to the fourth and fifth solutions of the present invention, respectively.

Contact lenses according to preferred embodiments of the present invention are also related to Knapp US Patent No. 4,582,402. This prior art lens is shown in FIG. 1 . In the center of the lens there is a transparent pupil area 20 surrounded by an annular iris area 21 . For hydrophilic lenses there is an edge zone 22 surrounding the iris zone 21 . As shown in FIG. 1, a colored opaque discontinuous pattern is located throughout the iris region 21. As shown in FIG. The pattern leaves a substantial portion of the iris area between pattern intervals transparent. The transparent areas of the iris area 21 are shown in white in FIG. 1 .

The elements of the pattern are preferably points, especially partially overlapping points, as shown in Figure 1. Some parts of the iris area 21 are covered with color dots more sparsely than other parts. The less densely covered parts approximately constitute radial stripes. This configuration accentuates the structure of the lens wearer's iris.

Of course, the opaque pattern can be formed by dots of any shape, regular or irregular, such as round, square, hexagonal and strip-shaped, etc. Furthermore, the elements of the pattern can be other shapes than dots, as long as the element is imperceptible to ordinary people, covers at least about 25% of the iris, and a considerable part of the iris area between the pattern intervals is transparent.

So far, the above description covers Knapp's invention patent US4582402, and the corresponding lenses have been sold since November 1986. Commercially available monochromatic lenses have almost exactly the same pattern as Fig. 1, but commercially available lenses have a smaller pupil area, and two rows of color points are added to obtain a wider iris area at the pupil area 20 periphery. That is, there are actually two rows of increased color points in commercially available lenses that are not drawn in Figure 1.

The improvement of the present invention is a very simple polychromatic pattern which greatly improves the natural appearance of the wearer's iris, even over monochromatic lenses which have enjoyed great commercial success. To make the two-color pattern of the present invention, the elements of the pattern (preferably dots) are divided into two parts. The first portion of elements has a first hue and is generally located on the periphery of the iris area, ie at or close to the outer edge of the annular iris area. A preferred first external pattern is shown in FIG. 3 . The second portion of elements has a second color tone different from the first color tone, and is generally located inside the iris area, ie at or near the inner edge of the annular iris area, and is surrounded by the first outer portion. A preferred second internal pattern is shown in FIG. 2 .

A jagged border separates the inside and outside of pattern elements. This boundary need not be very precise. Some of the color points of the first shade may mix into the color points of the second shade as long as there is a jagged border or border area across which a noticeable change in hue is produced. If the patterns of Figures 2 and 3 are combined into a dichroic lens, the jagged outer edge of the Figure 2 pattern will merge with the jagged inner edge of the Figure 3 pattern to form a jagged border between the two parts with different shades .

The opaque portion of the iris area is preferably produced by printing twice on the lens using the printing process disclosed in US Pat. No. 4,582,402 (Knapp), incorporated by reference. Quite simply, a flat or lead plate with the desired concave pattern is painted with ink of the desired shade. Excess ink is removed by scraping the surface with a flat plate with a squeegee, so that the depressions are filled with ink. A silicone rubber ink roller is pressed against the plate to pick up the ink from the depressions, and then pressed against the surface of the lens to transfer the pattern onto the lens. The printed pattern is then cured so that it cannot be removed from the lens. Of course, both the front and back surfaces of the lens can be printed, however, it is preferred to print on the front surface.

Lenses and inks suitable for use in the present invention are known and disclosed in US Pat. No. 4,668,240 (Loshack's), incorporated by reference. Quite simply, a lens made of a polymer with -COOH, -OH or _-NH2 groups is printed with an ink comprising a binding polymer with the same functional groups, an opaque coloring substance, and a diisocyanate compound. A solution and a solvent of the binding polymer are first prepared, and the solution is mixed with a paste containing a coloring substance to make an ink. A suitable polymer solution disclosed in the Loshack patent has a viscosity of 25000 CPS. However, it is now preferred to use a binding polymer solution having a viscosity of 40,000 CPS to form the inks for the lenses of the present invention. Opaque ink is printed and cured on the surface of the lens.

Of course, other means can also be used to form the opaque tinting elements of the lens. For example, a selected portion of the iris area on a wetted hydrophilic lens can be saturated with a solution of one of its substances, such as a barium chloride solution. The lens is then dipped into a solution of a second substance, such as sulfuric acid, to produce an opaque, water-insoluble precipitate of the first substance, such as barium sulfate. An opaque deposit then forms on the lens in the iris area in a predetermined pattern. The entire iris area, or at least its opaque pattern, is then colored according to the invention with two colors of transparent dyes, thus producing a lens with the opaque tinted pattern of the invention. If the entire iris area is colored with a transparent dye, the spaces between the patterns will be colored with a transparent color, but still transparent, corresponding to the first and second solutions of the present invention. The pupil area of the lens can also be tinted with a clear dye because the dye is not visible when the lens is placed against the dark pupil on the wearer's eyeball. Other methods of making it opaque include the use of lasers (US 4744647) and fine abrasive particles (US4460523).

The following examples give preferred embodiments, but in general, the precise pattern of opacity and method of obtaining opacity and coloration is not critical to the practice of the invention.

In the following examples, all dimensions are for hydrophilic lenses without water. After immersion in water, the lens expands to 1.3 times its size without water. Thus, after immersion in water, all dimensions are approximately 1.3 times the values described below. However, the calculated distance of the jagged border from the outer edge of the iris zone as a percentage of the radial width of the iris zone will not change with immersion.

Although the lens used in the present invention expands by 1.3 times after immersion in water, those skilled in the art will recognize that different lenses with different expansions after immersion in water can also be used.

Example 1

A hydrophilic lens made of hydroxyethyl methacrylate, ethoxyethyl methacrylate and methacrylic acid as shown in US4668240 is coated with an ink having a first shade on its front convex surface , the ink contains pigments, a binding polymer made from the same monomers used to make lenses, 1,6-hexamethylene diisocyanate, and solvents. The printed image is shown in Figure 1. The pattern with a ring-like structure covers almost the entire iris area with an outer diameter ^R1 of 5.2 mm and an inner diameter ^R2 of 2.2 mm. After the ink has cured, the first pattern is overprinted with a pattern as shown in FIG. 2 having a color tone different from that of the pattern in FIG. 1 . When printing for the second time, it is preferable that the centers 23 of the two patterns coincide. However, it is not necessary to rotate the arrangement of the patterns of Fig. 1 and Fig. 2 . That is, after the pattern of Fig. 1 is printed on the lens, the rotation of the lens or the ink roller used to print the pattern of Fig. 2 about the center 23 of the lens is irrelevant. Produces perfect lenses with or without rotation.

The inner diameter R ³ of the lens pattern in FIG. 2 is 2 millimeters, and the outer diameter of the variation has a maximum value of about 4.5 millimeters at 24 and a minimum value of about 2.7 millimeters at 25 . The variation in outer diameter produces the jagged outer edge of the Figure 2 pattern. It should be noted that since the radius ^R1 of the pattern in Figure 1 is 5.2 mm, the distance from the peripheral pattern extending inward to the iris area is about 5.2-4.5 or 0.7 mm (minimum) to 5.2-2.7 or 2.5 mm (maximum)

The radial width of the iris area is the outer radius R ¹ minus the inner radius R ³ , that is, 5.2mm−2mm=3.2mm. In this way, it can be seen that the distance between the jagged border and the outer edge of the iris area is at least 0.7/3.2 or about 20% of the radial width of the iris area, and the maximum is about 2.5/3.2 or about 80% of the radial width of the iris area. Generally speaking, the minimum distance of the jagged border at the outer edge of the iris area should be 5% to 45% (preferably 10% to 30%) of the radial width of the iris area, and the maximum distance of the jagged border at the outer edge of the iris area The distance should be 45% to 95% (preferably 60% to 80%) of the radial width of the iris area. Thus, the peripheral pattern constitutes a substantial portion of the overall iris area, rather than a thin circle at the edge as disclosed in U.S. Patent No. 4,719,657 (Bawa) at column 7, line 56 to column 8, line 34. A lens made according to this example would have the pattern of Figure 1 superimposed on the pattern of Figure 2, with an exterior consisting only of the first hue elements of Figure 1 and an interior consisting primarily of the second hue elements of Figure 2, but with The gaps in the pattern show some of the tones of Figure 1.

While the exact shade to achieve the invention is not critical, the shades of the inks shown in the table below are most suitable.

The weight percent of pigment in the ink

Ink label FeO FeO FeO PCN

Label color TiO ₂ (red) (black) (yellow) Cr ₂ O ₃ (blue)

1 blue 5.3 0 0 0 0 0.6

2 Hazel 0.7 1.9 0 5.3 0 0.1

3 Green 0 0 0 0 12.2 0

4 Brown 0 5.3 8.7 0 8.8 0

5 yellowish brown 0.3 0.8 0 4.6 0 0

6 light gray 4.2 0 1.1 0 0 0

7 dark gray 4.3 0 7.1 0 0 0

8 Black 0 0 14.6 0 0 0

In the table above, the following abbreviations are used:

TiO ₂ : titanium dioxide

FeO (red): red iron oxide

FeO (black): black iron oxide

FeO (yellow): yellow iron oxide

Cr ₂ O ₃ : Chromium trioxide

PCN Blue: Phthalocyanine Blue (Pigment Blue 15, C, I74160)

In addition to pigments, the inks contain binding polymers, solvents, and diisocyanates or homoisocyanates as described in US Pat. No. 4,668,240 to Loshaek. The following specific color combinations are preferred:

Example Figure 1 Pattern Figure 2 Pattern

1A No. 3 ink (green) No. 2 ink (light brown)

1B No. 1 ink (blue) No. 2 ink (light brown)

1C No. 4 ink (brown) No. 5 ink (yellow brown)

1D No. 1 ink (blue) No. 6 ink (gray)

Example 2

A contact lens is first printed with the pattern of Figure 3 and then with the pattern of Figure 2 in a second tone. When these two patterns are used, the central portions 23 of the two patterns are aligned, and furthermore, the two patterns are aligned in the rotational direction so that the radial straight lines ^RL1 and ^RL2 coincide. The following color combinations are preferred:

Example Figure 3 Pattern Figure 2 Pattern

2A No. 1 ink (blue) No. 2 ink (light brown)

2B No. 3 ink (green) No. 2 ink (light brown)

2C No. 4 ink (brown) No. 5 ink (yellow brown)

2D No. 1 ink (blue) No. 6 ink (light gray)

2E No. 6 ink (light gray) No. 7 ink (dark gray)

Example 3

A contact lens is first printed with the pattern of Figure 4, then with the pattern of Figure 5 in a second tone, and finally with the pattern of Figure 6 in a third tone. The central portion 23 of each pattern is aligned, and patterns 4 and 5 are aligned along radial diameters RL ³ and RL ⁴ in the direction of rotation. As shown in Figures 4 and 5, the minimum distance at the outer edge of the iris zone at the jagged border between the two parts of the iris zone with the first and second hues will be about 10% of the radial width of the iris zone, and the maximum The distance will be around 80% of its radial width. The border is more jagged and not as clear as the borders of Examples 1 and 2. The following color combinations are preferred:

Example Figure 4 Pattern Figure 5 Pattern Figure 6 Pattern

3A No. 3 ink (green) No. 2 ink (light brown) No. 8 ink (black)

3B No. 1 ink (blue) No. 2 ink (light brown) No. 8 ink (black)

3C No. 5 ink (brown) No. 5 ink (yellow) No. 8 ink (black)

3D No. 1 ink (blue) No. 6 ink (gray) No. 8 ink (black)

3E No. 6 ink (light gray) No. 7 ink (dark gray) No. 8 ink (black)

Examples 3A-3E represent trichromatic lenses.

All of the lenses made according to the above examples have a more natural appearance than the lenses according to Knapp's US Patent US 4582402 and have achieved great commercial success.

Example 4

Lenses were prepared according to the second aspect of the invention using the pattern of FIG. 7 . In Fig. 7, the opaque iris area 26 has transparent elements 27 (only a few of which are marked). The transparent elements in FIG. 7 are approximated as radial strip regions and dots. The opaque region has a first region of a first shade separated by a jagged border 28 and a second inner region of a second shade different from the first shade.

Example 5

Lenses are prepared according to the third solution of the present invention using the pattern in Fig. 8 . The iris area of the lens is opaque. The outer zone 29 has a first color tone and the inner zone 30 has a second color tone. A jagged border 31 separates regions 29 and 30 .

Although the lenses of Examples 4 and 5 have not been actually made, they certainly achieve a more natural appearance than the same lenses in monochrome. Prepare eyeglasses by these two embodiments simultaneously than Wichterle disclosed in US 3679504 to make natural iris simpler and more economical with photography or painting.

Figure 9 shows a lens made according to a fourth aspect of the invention in which a substantial portion of the natural color of the iris of the wearer is visible. The lens of FIG. 9 includes a transparent pupil zone 40 and an iris zone formed by a first outer zone 41 and a second inner zone 42 . Iris regions 41 and 42 are separated by a jagged border 43 having a minimum and a maximum distance at the outer edge 44 of the iris region of the same percentage of the radial width of the iris region as previously described. One of the areas 41 and 42 is transparent, while the other area has an opaque color. For example, the inner region 42 may have an opaque color while the outer region is transparent, or vice versa. If the clear portion is untinted, or the clear portion is tinted with a clear color, and the wearer has an iris dark enough to show through the clear color, a substantial portion of the natural color of the wearer's iris is visible. For hydrophilic lenses, a transparent outer region 45 surrounds the iris region. Opaque colors are preferably patterns of elements imperceptible to the human eye, but continuous opaque pigment coloring or continuous coloring combined with transparent elements may also be used.

Figure 10 shows a lens made according to the fifth embodiment of the invention. Like the lens of Fig. 9, this lens also allows most of the natural color of the wearer's iris to be seen. The lens of FIG. 10 includes a pupil zone 50 and an iris zone consisting of a first outer zone 51 surrounding a second intermediate zone 52 and a third inner zone 53 surrounded by the intermediate zone 52 . The outer region 51 and the middle region 52 are separated by a first indented border 54 . The intermediate region 52 and the inner region 53 are separated by a second indented border 55 . For hydrophilic lenses, a transparent outer region 56 surrounds the iris region. In this example, three different coloring schemes are employed.

A. The inner region 53 and the outer region 51 have an opaque color, while the middle portion 52 is transparent;

B. The middle region 52 has an opaque color, while the inner region 53 and outer region 51 are transparent;

C. The three regions 51 , 52 and 53 are all of an opaque color, while the middle region 52 has a different hue than the outer region 51 and the inner region 53 .

The opaque color is preferably a pattern of elements that are invisible to the average person, although other types of opaque coloring are also possible.

While lenses with clear areas as shown in Figures 9 and 10 make visible the color of the wearer's natural iris, similarly tinted lenses can show different appearances to different wearers, producing very pleasant and changing color effects.

The above examples and drawings are for the purpose of explaining rather than limiting the invention, which is defined by the claims. Some variations from the examples and figures are also possible according to the invention. For example, color and pattern schemes may also be varied. Either or both the front and back surfaces of the lens may be printed. The opaque material can be on the surface of the lens, in the lens, or both. Further, lenses for wearers with light colored irises may be slightly transparent in their opaque color.

Claims (15)

1, a kind of Tinted contact lenses, comprise a transparent lesser ring of Merkel, iris district around this lesser ring of Merkel, with a painted opaque interruption pattern that is positioned at whole iris district, it is transparent leaving sizable part between the gap of this pattern, at least 25% of this pattern covers iris district, the element of this pattern is that common people do not recognize, wherein this pattern first element has first tone, and this pattern second portion element has second tone that is different from first tone, wherein first generally is positioned at the periphery in iris district, second portion generally is positioned at the inside in iris district, a serrated boundary separates described first and second parts, wherein this serrated boundary is about 5%～45% of iris district radial width in the minor increment of iris district outer rim, and this border is about the 45%-95% of iris district radial width in the minor increment of iris district outer rim, produces a kind of appearance color of the wearer's of change iris thus, provides the eyeglass of utmost point natural look simultaneously.

2, glasses as claimed in claim 1, wherein the serrated boundary is about 10～30% of iris district radial width in the minor increment of iris district outer rim, and this border is about 60%～80% of iris district radial width in the maximum distance of iris district outer rim.

3, as the glasses of claim 1 and 2, wherein the element of pattern is a little.

4, glasses as claimed in claim 3, wherein transparent gap is not painted.

5, glasses as claimed in claim 3, wherein transparent gap with transparent color.

6, a kind of Tinted contact lenses, comprise a transparent lesser ring of Merkel, opaque iris district around this lesser ring of Merkel, and being common people, the transparent elements in the iris district do not recognize, wherein the opaque iris of first district has first tone, and the opaque iris of second portion district has second tone that is different from first tone, first generally is positioned at the periphery in iris district, second portion generally is positioned at inside, iris district, a serrated boundary separates first and second parts, wherein the serrated boundary is about 5%～45% of iris district radial width in the minor increment of iris district outer rim, and this border is about 45%～95% of iris district radial width in the ultimate range of the outer rim in iris district, produce a kind of appearance color of the wearer's of change iris thus, provide the eyeglass of utmost point natural look simultaneously.

7, glasses as claimed in claim 6, wherein the serrated boundary is about 10%～30% of iris district radial width in the minor increment of iris district outer rim, and this border is about 60%～80% of iris district radial width in the ultimate range of iris district outer rim.

8, glasses as claimed in claim 7, wherein the transparent elements in iris district is not painted.

9, glasses as claimed in claim 7, wherein the transparent elements in iris district with transparent color.

10, a kind of Tinted contact lenses, comprise a transparent lesser ring of Merkel, with an opaque iris district around this lesser ring of Merkel, wherein, first iris district has first tone, second portion iris district has second tone that is different from first tone, first generally is positioned at the periphery in iris district, and second portion generally is positioned at the inside in iris district, a serrated boundary separates first and second parts, wherein this serrated boundary is about 5%～45% of iris district radial width in the minor increment of iris district outer rim, and this border is about 45%～95% of iris district radial width in the ultimate range of iris district outer rim, produce a kind of appearance color that can change wearer's iris thus, provide the eyeglass of utmost point natural look simultaneously.

11, as the glasses of claim 10, wherein the serrated boundary is about 10%～30% of iris district radial width in the minor increment of iris district outer rim, and this border is about 60%～80% of iris district radial width in the ultimate range of iris district outer rim.

12, a kind of Tinted contact lenses, comprise a transparent lesser ring of Merkel, iris district around this lesser ring of Merkel, this iris district is made of first perimeter that is separated by a serrated boundary and second interior zone, wherein the serrated boundary is about 5%～45% of iris district radial width in the minor increment of iris district outer rim, and this border is about 45%～95% of iris district radial width in the ultimate range of iris district outer rim, wherein among two parts, a part is transparent, and another part has opaque color.

13, as the glasses of claim 12, wherein opaque color is the pattern that a kind of element that is not recognized by common people constitutes.

14, a kind of Tinted contact lenses, comprise a transparent lesser ring of Merkel, iris district around this lesser ring of Merkel, this iris district by one around first perimeter of second zone line and one by this zone line around the 3rd interior zone constitute, first and second zones by first serrated boundary separately, and the second and the 3rd zone by second serrated boundary separately, wherein the first and the 3rd zone has opaque color, and second area is transparent, perhaps second area has opaque color, and the first and the 3rd zone is transparent, perhaps first, the second and the 3rd zone all has opaque color, and second area has the tone that is different from the first and the 3rd zone.

15, as the glasses of claim 14, wherein opaque color is the pattern that is made of the element that common people do not recognize.

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